Step Bit Enough to Get Through Tailblock?

[penenpitsu]

I've been toying with the idea of purchasing a M1 when I learned that a 1/2" hole is needed for installation of the end pin jack. The manual states to use a step bit to widen the hole, but I'm skeptical that the step bit is long enough to penetrate the tailblock. Am I being paranoid, or is a step bit sufficient to make the desired size?

 

Thanks for all replies,

Jeff

[JasmineTea]

Originally posted by penenpitsu I'm skeptical that the step bit is long enough to penetrate the tailblock. Am I being paranoid, or is a step bit sufficient to make the desired size? Thanks for all replies, Jeff

If you want a jack you'll need to cut through the tailblock. Otherwise where will the wires go?

[Danocoustic]

Step bit, huh?

I've always just used a standard twist bit. I always put a piece of heavy masking tape over the area to minimize chipping, and work slowly. Never had a problem.

[bjorn-fjord]

The tail block is usually only 3/4" thick. Is there a separate end-graft at the tail? If so, use extreme caution when drilling because the drill bit can actually pull the graft away from the block as you drill. I use brad-point drill bits for this operation but if there is already a strap pin you're going to have to use a twist drill. You're best off drilling a smaller diameter pilot hole before going at it with the 1/2" bit. In fact, you could do it in stages. 1/8, 1/4, 3/8, 1/2 just to be safe.

[Cldplytkmn]

the luthier i frequent uses a long (maybe 6 inches long) step bit.

[penenpitsu]

The guitar came with a strap pin installed, and the hole measured 5/16" in diameter. I was debating whether I should invest in a step bit or not, and I'm thankful for your responses. I've concluded that taking the guitar to a local luthier and having him drill a hole would be wiser than attempting it myself.

Well, time wasted on the computer is time wasted not practicing my scales. Good luck to all of ya